Police in Whitehall Township, Lehigh County, are on the lookout for a man who held up a convenience store at gun point.
It happened Tuesday night at the Sunoco Mini Market on MacArthur Road.
Police say a man armed with a handgun demanded money from the clerk, then took off on foot.
It's not clear if he was able to get away with any cash.
Police are investigating if the same guy was involved in two other recent robberies.